THURSDAY, Aug. 23 (HealthDay News) -- Exposing rats to pulses of a low-amplitude magnetic field speeds wound healing, researchers report in the August issue of Plastic and Reconstructive Surgery.
Berish Strauch, M.D., from Montefiore Medical Center in the Bronx, N.Y., and colleagues made a dorsal incision in rats, then treated them for 30 minutes twice a day with different low-amplitude magnetic field signals (0.02 or 0.05 G) for 21 days. Wound healing was determined by the point of rupture of the wound using a tensiometer.
The researchers found increases in tensile strength of 18 percent to 59 percent compared with control rats, which were statistically significant at the higher dose.
"The authors successfully demonstrated that exposing wounds to pulsed magnetic fields of very specific configurations accelerated early wound healing in this animal model, as evidenced by significantly increased wound tensile strength at 21 days after wounding," Strauch and colleagues write.
The study was partially supported by Ivivi.
Abstract
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